@article {15255, title = {The role of the interaction coefficient in the prediction of the fiber orientation in planar injection moldings}, journal = {Polymer Composites}, volume = {24}, year = {2007}, month = {2007-05-31 00:00:00}, pages = {358-366}, abstract = {

The mechanical properties of injection molded parts in glass reinforced materials are sensitive to processing. A successful design requires a good estimate of the product performance before production. Its performance is strongly affected by the fiber orientation field set up during processing. The fiber orientation pattern is complex and varies three-dimensionally in the moldings. Some commercial simulation programs already allow the prediction of the fiber orientation induced during the flow by the associated stress field. The results from the simulations are dependant on a parameter accounting for the interactions between fibers during the flow, known as the fiber interaction coefficient.

This paper assesses how the interaction coefficient between neighboring fibers, CI, affects the fiber orientation pattern. This was achieved by comparing experimental data in center gated circular discs with C-Mold simulations.

}, keywords = {fiber orientation, planar injection moldings}, author = {Pontes, A. J. and Neves, N. M. and Pouzada, A. S.} }